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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-05-26 17:27:12 +0000 |
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| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-05-26 17:27:12 +0000 |
| commit | 7de379467e3e3db7f56805b21617bd24b87cf024 (patch) | |
| tree | fbc9da3d1b64308b3eff63c86200005d88808a0b /llvm/lib/CodeGen | |
| parent | 172aaadd20f50b6f4adda8a99bb243c601be93db (diff) | |
| download | bcm5719-llvm-7de379467e3e3db7f56805b21617bd24b87cf024.tar.gz bcm5719-llvm-7de379467e3e3db7f56805b21617bd24b87cf024.zip | |
Replace the SubRegSet tablegen class with a less error-prone mechanism.
A Register with subregisters must also provide SubRegIndices for adressing the
subregisters. TableGen automatically inherits indices for sub-subregisters to
minimize typing.
CompositeIndices may be specified for the weirder cases such as the XMM sub_sd
index that returns the same register, and ARM NEON Q registers where both D
subregs have ssub_0 and ssub_1 sub-subregs.
It is now required that all subregisters are named by an index, and a future
patch will also require inherited subregisters to be named. This is necessary to
allow composite subregister indices to be reduced to a single index.
llvm-svn: 104704
Diffstat (limited to 'llvm/lib/CodeGen')
0 files changed, 0 insertions, 0 deletions
